<?php

/**
 * @file
 * Provide views data and handlers for search.module
 */
/**
 * @defgroup views_search_module search.module handlers
 *
 * Includes the tables 'search_index'
 * @{
 */

/**
 * Implementation of hook_views_data()
 */
function search_views_data() {
    // Basic table information.
    // Define the base group of this table. Fields that don't
    // have a group defined will go into this field by default.
    $data['search_index']['table']['group'] = t('Search');

    // For other base tables, explain how we join
    $data['search_index']['table']['join'] = array(
        'node' => array(
            'left_field' => 'nid',
            'field' => 'sid',
        ),
    );

    $data['search_total']['table']['join'] = array(
        'node' => array(
            'left_table' => 'search_index',
            'left_field' => 'word',
            'field' => 'word',
        ),
        'users' => array(
            'left_table' => 'search_index',
            'left_field' => 'word',
            'field' => 'word',
        )
    );

    $data['search_dataset']['table']['join'] = array(
        'node' => array(
            'left_table' => 'search_index',
            'left_field' => 'sid',
            'field' => 'sid',
            'extra' => 'search_index.type = search_dataset.type',
            'type' => 'INNER',
        ),
        'users' => array(
            'left_table' => 'search_index',
            'left_field' => 'sid',
            'field' => 'sid',
            'extra' => 'search_index.type = search_dataset.type',
            'type' => 'INNER',
        ),
    );

    // ----------------------------------------------------------------
    // Fields
    // score
    $data['search_index']['score'] = array(
        'title' => t('Score'),
        'help' => t('The score of the search item. This will not be used if the search filter is not also present.'),
        'field' => array(
            'handler' => 'views_handler_field_search_score',
            'click sortable' => TRUE,
            'float' => TRUE,
        ),
        // Information for sorting on a search score.
        'sort' => array(
            'handler' => 'views_handler_sort_search_score',
        ),
    );

    // Search node links: forward links.
    $data['search_node_links_from']['table']['group'] = t('Search');
    $data['search_node_links_from']['table']['join'] = array(
        'node' => array(
            'arguments' => array('search_node_links', 'node', 'nid', 'nid', NULL, 'INNER'),
        ),
    );
    $data['search_node_links_from']['sid'] = array(
        'title' => t('Links from'),
        'help' => t('Other nodes that are linked from the node.'),
        'argument' => array(
            'handler' => 'views_handler_argument_node_nid',
        ),
        'filter' => array(
            'handler' => 'views_handler_filter_equality',
        ),
    );

    // Search node links: backlinks.
    $data['search_node_links_to']['table']['group'] = t('Search');
    $data['search_node_links_to']['table']['join'] = array(
        'node' => array(
            'arguments' => array('search_node_links', 'node', 'nid', 'sid', NULL, 'INNER'),
        ),
    );
    $data['search_node_links_to']['nid'] = array(
        'title' => t('Links to'),
        'help' => t('Other nodes that link to the node.'),
        'argument' => array(
            'handler' => 'views_handler_argument_node_nid',
        ),
        'filter' => array(
            'handler' => 'views_handler_filter_equality',
        ),
    );

    // search filter
    $data['search_index']['keys'] = array(
        'title' => t('Search Terms'), // The item it appears as on the UI,
        'help' => t('The terms to search for.'), // The help that appears on the UI,
        // Information for searching terms using the full search syntax
        'filter' => array(
            'handler' => 'views_handler_filter_search',
        ),
    );

    return $data;
}

/**
 * Implementation of hook_views_handlers() to register all of the basic handlers
 * views uses.
 */
function search_views_handlers() {
    return array(
        'info' => array(
            'path' => drupal_get_path('module', 'views') . '/modules/search',
        ),
        'handlers' => array(
            'views_handler_field_search_score' => array(
                'parent' => 'views_handler_field_numeric',
            ),
            'views_handler_sort_search_score' => array(
                'parent' => 'views_handler_sort',
            ),
            'views_handler_filter_search' => array(
                'parent' => 'views_handler_filter',
            ),
        ),
    );
}

/**
 * Implementation of hook_views_plugins
 */
function search_views_plugins() {
    return;
    // DISABLED. This currently doesn't work.
    return array(
        'module' => 'views', // This just tells our themes are elsewhere.
        'row' => array(
            'search' => array(
                'title' => t('Search'),
                'help' => t('Display the results with standard search view.'),
                'handler' => 'views_plugin_row_search_view',
                'path' => drupal_get_path('module', 'views') . '/modules/search', // not necessary for most modules
                'theme' => 'views_view_row_search',
                'base' => array('node'), // only works with 'node' as base.
                'type' => 'normal',
            ),
        ),
    );
}

/**
 * Template helper for theme_views_view_row_search
 */
function template_preprocess_views_view_row_search(&$vars) {
    $vars['node'] = ''; // make sure var is defined.
    $nid = $vars['row']->nid;
    if (!is_numeric($nid)) {
        return;
    }

    $node = node_load($nid);

    if (empty($node)) {
        return;
    }

    // Build the node body.
    $node = node_build_content($node, FALSE, FALSE);
    $node->body = drupal_render($node->content);

    // Fetch comments for snippet
    $node->body .= module_invoke('comment', 'nodeapi', $node, 'update index');

    // Fetch terms for snippet
    $node->body .= module_invoke('taxonomy', 'nodeapi', $node, 'update index');

    $vars['url'] = url('node/' . $nid);
    $vars['title'] = check_plain($node->title);

    $info = array();
    $info['type'] = node_get_types('name', $node);
    $info['user'] = theme('username', $node);
    $info['date'] = format_date($node->changed, 'small');
    $extra = node_invoke_nodeapi($node, 'search result');
    if (isset($extra) && is_array($extra)) {
        $info = array_merge($info, $extra);
    }
    $vars['info_split'] = $info;
    $vars['info'] = implode(' - ', $info);

    $vars['node'] = $node;
    // @todo: get score from ???
//$vars['score'] = $item->score;
    $vars['snippet'] = search_excerpt($vars['view']->value, $node->body);
}

/**
 * @}
 */
